Trichoo7i] xxviii. c;ramixe,e. 219 



Marshes on Calemba Island ; one specimen in flower. March IS;")?. 

 No. 7397. 



Benguella. — A reed-hke grass, 4 to 8 ft. high, with a rhizome creep- 

 ing horizontally for 30 ft. or more, leaves spinescent or pnngent, 

 remarkably social. Very plentiful in rather damp sandy places by the 

 banks of the river Cavado and Cotumbclla : June 1859. No. 2287- 



MosSAMEDES. — Plentiful and forming dense reed-beds, in half dried- 

 up thickets near the banks of the river Bero ; by no means a friend 

 to travellers. Sparsely flowering ; July 18.o'J. No. 2386. Plentiful on 

 the banks of the river Maiombo, between Pedra do Rei and Pedra de 

 Sal ; Oct. 1859. No. 2285. 



Tribe ix. CHLORIDE^E. 

 46. MICROCHLOA Pt. Br.; Benth. ikHook. f. Gen. PI. iii. p. 1163. 



1. M. setacea E. Br. Prodr. p. 208 (1810); Steud. Syn. PI. 

 Oram. p. 202 (1854) ; Durand & Schinz, Consp. Fl. Afr. v. p. 856. 



M. abyssinica Hochst. ex A. Eicli. Fl. Abyss, ii. p. 404 (1851) ; 

 Steud., I.e. 



PuxGo AxDoxGo. — Widely and densely casspitose, with erect culms 

 and very simple subfalcate spikes. On the spongy slopes of the more 

 lofty rocks near Pungo Andongo : in fl. Nov. 1856. No. 2742. 

 Gravelly places in the prassidium ; Jan. 1857. No. 2706. Rocky 

 places in the prajsidium ; Feb. 1857. Xos. 2799, 27996. Flowering 

 somewhat rarely, in rock-lissures at Pedras Negras ; April 1857. 

 No. 2810. Csespitose, with culms and leaves coriaceous rigidulous 

 suberect, spikes falcate greenish. On the banks of the great cataract 

 of Condo but not plentiful ; March 1867. No. 2807- 



HuiLLA.— In the damp pastures of Empalanca ; April 18G0. 

 No. 2659. 



Var. gracilis Rendle var. nov. 



A slender elongated variety 1^ to 2 ft. high, with narrow 

 weakly setaceou.s plicate or subflattened leaves 2 to 3} in. long, 

 and gracefully curving spikes 6 to 8 in. long and scarcely exceed- 

 ing ^ line in width. 



Pungo Andongo. — A very slender and elegant grass, 2 ft. high, 

 somewhat csespitose, a striking ornament of the somewhat damp 

 wooded meadows near Mutolo at Pedras de Guinga ; March 1857. 

 No. 2811. 



2. M. ensifolia Rendle sp. nov. 



Perennial, densely cfespito.se, the culms slender, ascending or 

 erect, densely covei-ed at the base with a growth of short, ascend- 

 ing, distichous, ensiform, blunt, stiffish, somewhat lleshy leaves 

 with a strong prominent white scabridulous midrib and margins 

 when young ; cauline internodes 3, very slender, ultimately half 

 as long again, or twice as long as the closely applied glabrous 

 sheaths ; nodes glabrous ; ligule a very short membranous 

 fimbriated ridge ; blades generally very short ; spike dense, 

 secund, arcuate, spikelets 1^ line long, lanceolate, acute, closely 

 resembling those of M. setacea ; barren glumes glabrous, 1 -nerved, 

 ^1. I. elliptic-oblong, subacute, gl. II. oblong narrowing above to 

 the shortly apiculate apex, green with hyaline white margins ; 



